Chain shortening link



FIG. 1 is a front view showing my new design for a chain shortening link,

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side thereof; and,

FIG. 6 is a top perspective view thereof. 

The ornamental design for a chain shortenign link, as shown and described. 